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J. W. ARTHUR.

PLURAL PART MOLD APPLICATION FILED MAYIZ. 1919.

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PLURAL PART MOLD.

APPLICATION FILED MAY 12, 1919.

1 ,3 5 ,200 Patented Sept. 9, 1919.

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PLURAL PART MOLD.

APPLICATION FILED MAY 12, 1919 Patented Sept. 9, 1919.

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[mwmm @mm Wfl JAMES w. ARTHUR, or AKRON, OHIO,

IGNOR TO THE WILLIAMS FOUNDRY &

MACHINE COMPANY, OF AKRON, OHIO, ,A CORPORATION OF OHIO.

rLrin-rnn'r Morn.

Specification of Letters Patent. PQttQHIlM-ld @ept, 9., 191g.

Application filed May 112, 1919. Serial No. 296,457.

useful Improvements in Plural-Part Molds,

of which the following is a specification.

My present invention'relates to improvements in vulcanizing apparatusdesigned for the repair of rubber foot wearand aims to provide a simple,economical, durable and efficient equipment designed to enable foot wearof various shapes to be neatly and expeditiously repaired. 1

The invention includes the novel features of construction andarrangement and combination of parts hereinafter described and definedby the appended claims, an embodiment of the invention being illustratedin the accompanying drawings, in wh1ch:-

Figure 1 is a front elevation of the apparatus.

Fig. 2 is an elevation at right angles to Fig. l.

Fig. 3 is an enlarged sectlonal detail of the dome or head.

Figs. 4:, 5 and 6 are details of the exterior parts of the means forholding the boot or shoe while vulcanizing the sole. I

Figs. 7, 8 and 9 are detail vlews of the horn and plates carriedthereby.

Referring by reference characters to this drawing the numeral 1designates a standard for supporting equipment which may be held invertical position by any suitable base such as the feet or legsl asshown.

' This standard is hollow and is designed act as a fuel reservoir forcontaining liquid fuel, which may be supplied to the burner 2 bycompressed air which may be forced into the upper part of the reservoirabove the fuel level either by a hand pump or any other convenientsource (not shown).- it

filling pipe and funnel 8 is provided for introducing fuel into thestandard.

Above the burner is located a holler 3 of any suital'ile type designedto supply steam standard and boiler. The boiler is preferably providedwith a water gage glass 5, a-

iilling pipe and funnel 6, and a pressure gage 7.

Secured to the top of the standard is a the various parts of the.

head dome or member 9 which carries the vulcanizing'; membershereinafter described and. which alsoserves as a steam collecting andreturn space, the steam. from the horns returning-into this space, and,with any water of, condensation bein boiler by 'pipe 10, provi ed with acut-oil valve 10. The head is provided on one side with a plurality ofopenings 9 two being shown in the drawings as a convenient memher, intowhich are designed to be inserted the inner ends of vulcanizing horns11. The horns are provided with flanges 11 fittin returned to thecorresponding rabbets in the side of the hea I and the horns aredetachablyheld in position by clamping plates 12 secured tothe head bytap screws or bolts 13, the clamping plates having integral sleeves orflanges 12 which embrace the sides of the horns and increase thestrength and rigidity of the connection.

The openings 9 and corresponding part s ofthe horns are made round sothatthehorns ma be turned on their ,horizontal axes to bring the footportions at any angle.

Projecting from the opposite side of the head is a soling plate or tableit havin a suitably curved uppersurface beneath which is a steam chamber15 to which steam from the boiler is supplied by a pipe 16. I prefer tolead the steam to the horns from this steam space as in this manner Tcan supply steam to the horns without interfering with the ready removalthereof, and to this end I provide a pipe 17 leading from the steamspace directly across the head 9 and axially into each horn, each pipebeing provided with a cut oil valve 18 having a stem projecting throughthe top of the head where it carries a suitable operating handle, thisproviding means for cutting ofi the steam supply in changing horns. .Ttis desirable" that the steam pipes 17 should extend clear into the toeportions of the horns as shown in dotted lines, Fig. 1 and to providefor using shorter horns for difl'erent characters of foot wear each pipeis made with a removable pipe portion 1 detachably connected with themain portion by a detachable coupling 17 of any approved type' To securethe requisite pressure upon the portion of the foot wear being repairedor vulcanized, I

provide the following instrumentalities.

30 of the arms 21. This shaft is provided with a crank handle 23 bymeans of which, after Supported from a suitable collar 18 on thestandard are a pair of parallel bracket arms 19 preferably round incross section which lie directly beneath the horns and have upwardlycurved outer portions 19; The arms 19 have transverse openings 19through which is passed and slidably held a horizontal bar 20.Associated with each right of Fig. 2 or the bar 20 as shown on the leftof Fig. 2, according to the position of the last and foot wear.

band 22'.

These band pulling arms comprise each a curved portion 21 20 having atthe extreme end'lugs supporting a bolt or pin 21 which serves as a means-for attachment of the end of a pressure The arms are provided with" awidened outportion above the threaded shank which has a central openingor passage through which the band is'passed and attached to or woundabout a shaft or spindle 23 journaled' in suitable bearing lug orportions 21 the band has been adjusted over the part to be vulcanized,it can be wound. on the- I movement.

shaft to secure the requisite pressure, Pawl and ratchet means indicatedat 24 is provided to hold" the shaft against reverse The threadedportion of'each arm 21 is 'provided with a wing nut 25 enabling verticaladj ustm'ent of the arm-with relation to number. When'the band carryinga' is I to be applied the curved part of bracket or member 20 islocated-beneath the arm: 19 or the rod 20 with'the band overlyin theboot or shoe, in which position it wil be self-supporting, andthereafter the band tightened to the desired degree as above described.

The table 14: is designed for acting on the sole of the boot or shoe andto'this end has its upper surface suitably curved or concaved as shown,and in conjunction-- with this I use sole vulcanizing plates 26 adaptedto rest on said curved surface and be heated thereby. I These soleplates 26 have an upper surface designedjto conform to the surface ofthe sole to be repaired or replaced, and are provided with a plurality.of mar 'nal pins or projections 26 designed to be etachably andinterchangeably engaged by the lower ends ofthe tension members orstraps '2'Zwhich are-connected at their upper ends to. a bracket member28 slidably carried on the horizontal portion 29 of the horn or leg last29' and locked sure to a desired in any desired position thereon by lockscrew 28*.

This horn or leg last is shaped at its lower end to project forwardlyinto the toe portion of the boot or shoeas indicated at 29 where it isprovided withremovable and changeable yielding means for bearing againstthe insole. Such means preferably comprises a plurality of superimposedflexible plates 30, 30 and 30 of graduated size, the desired resiliencyof the edges being secured by notching the edges as indicated at a. Theplates are'secured to the under face of the portion 29 by means ofbolts,

the plates being preferably provided with elongated slots 6 havingenlarged portions 6' designed to permit the passage of the 'bolt headsand enabling the plates to be locked on the last or horn by alongitudinal movement which brings the heads of the bolts over thenarrower portions of the openings.

By using a plurality of superimposed re-f silient plates I get a maximumof resistance for large articles of foot wear when all the plates areused which may be successively reduced forsmaller articles by thesuccessive removal of the outer plates.

-It'is some times found desirable to sup port the vulcanizing outfithereinbeforedescribed from a wall or.connect it thereto, and to this endI provide the head or dome with a laterally extending arm 31 providedwith a plate 31 designed to be bolted to a wall or other stationaryvertical member. Having thus described my invention what I;claim is: p

1. In combination a suitable'supporting member, a work supporting hornprojecting laterally therefrom, means enabling said horn to be adjustedabout its horizontal axis, and means for applying exterior presportionof-thettrticle carried by the horn.

2. In combination a. suitable support, a work supporting horn carriedthereby, a

, bracket arm located below the horn, a band carrying arm adjustablycarried by the bracket arm and having a curved part overhanging thehorn, a pressure band having one end attached to the end of said curvedpart, and'means acting on theother end of V the band for tensioning thesame. 7

'3. In combination a suitable support, a a

work supporting horn carried thereby, a bracket arm located below thehorn, a band carrying armadjustably carried by the bracket arm andhaving'a curved part overhanging the horn, a pressure band havingone-end attached to the end of said curved part, a spindle'journaled insaid band carrymg arm and provided with a hand crank and to whichspindle the other end of said band is connected, and means for lockingsaid spindle against reverse movement.

4. In combination a suitable support, a

plurality of horizontally disposed horns supported therefrom, a bracketarm extended beneath each horn, a cross bar adjustably supported by saidseveral brackets, band carrying means supported by said cross bar andoverhanging the horns, and means for tensioning the bands.

5. In combination suitable support, a

plurality of horizontally disposed horns supported therefrom, aplurality of bracket arms beneath the horns, a cross bar adjustablysupported 'by said brackets, band carrying means supported by said crossbar and overhangingthe horns, one of said band carrying means. beingdisplaced laterally from the vertical plane of the horn to a I greaterdistance than the other of said band Ill 0 carrying means, and means fortensioning the bands.

of thehorn, and a steam exit from said- 8. In combination a steam head,a steam table supported at one side thereof, a hol- 10w horn supportedat the other side thereof, and 1n communication with said head, asteampipe leadingfrom the steam space of said table through the headinto, the extremity of the horn, a boiler, apipe'leading from the boilerto the steam table, and a steam return pipe from the head to the boiler.

9. In combination a hollow head, a steam table at one side thereof, aplurality of 1101-.

low horns "removably and interchangeably carried by the other side, aplurality of steam pipes extending from said. steam space through thehead and into said horns, said pipes having removable portions, valvesfor said pipes, means for supplying steam to said table, and a steamoutlet from said head. I v

10. A presser plate for use in vulcanizing foot wear comprising aplurality of superimposed sheets of resilient material of differentareas. I

11. A presser plate for use in vulcanizing foot wear comprising aplurality of superimposed sheets of resilient material of differentareasv having slitted or notched edges. a

12. A presser plate for use in vulcanizing foot wear comprising aplurality of superimposed sheets of resilient material of difierentareas, detachably connected together.

13. In combination a last or tree member and a pressermember composed ofa plumaterial of different areas.

14. In combination a mold plate, a tree having alateral arm, and strapsconnected with said lateral arm at one end and means for connecting theopposite ends of said straps with the edges of the'mold plate atdifferent points.

15. In combination a mold plate having a series of projections on eachside edge, a

tree, and straps connected with the upper end of said tree and havingrecesses in their lower ends adapted to receive saidprojections.

16. In combination a tree having an 'angularly turned upper end, a blockad- 'justably carried by said end, a mold plate, straps connected tosaid block and means for removably and adjustably connecting the lowerends of said straps to the edges of saidmold plate.

In testimony whereof, I aflix my signature.

JAMES W. ARTHUR.

.rality of superimposed sheets of resilient

